Author: tkreuzer
Date: Thu Sep 22 07:52:51 2011
New Revision: 53801
URL: http://svn.reactos.org/svn/reactos?rev=53801&view=rev
Log:
[FREELDR]
- Move heap code out of mm.c into a seperate file mm/heap.c
- Move code from arcemul/mm.c into mm/mminit.c
Added:
trunk/reactos/boot/freeldr/freeldr/mm/heap.c
- copied, changed from r53800, trunk/reactos/boot/freeldr/freeldr/mm/mm.c
Removed:
trunk/reactos/boot/freeldr/freeldr/arcemul/mm.c
Modified:
trunk/reactos/boot/freeldr/freeldr/CMakeLists.txt
trunk/reactos/boot/freeldr/freeldr/freeldr_base.rbuild
trunk/reactos/boot/freeldr/freeldr/mm/meminit.c
trunk/reactos/boot/freeldr/freeldr/mm/mm.c
Modified: trunk/reactos/boot/freeldr/freeldr/CMakeLists.txt
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/CMakeLists.txt?rev=53801&r1=53800&r2=53801&view=diff
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/CMakeLists.txt [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/CMakeLists.txt [iso-8859-1] Thu Sep 22
07:52:51 2011
@@ -33,7 +33,6 @@
options.c
oslist.c
version.c
- arcemul/mm.c
arcemul/time.c
cache/blocklist.c
cache/cache.c
@@ -53,6 +52,7 @@
inifile/parse.c
mm/meminit.c
mm/mm.c
+ mm/heap.c
reactos/registry.c
reactos/arcname.c
reactos/archwsup.c
Removed: trunk/reactos/boot/freeldr/freeldr/arcemul/mm.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/arcemul/mm.c?rev=53800&view=auto
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/arcemul/mm.c [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/arcemul/mm.c (removed)
@@ -1,223 +1,0 @@
-/*
- * PROJECT: ReactOS Boot Loader (FreeLDR)
- * LICENSE: GPL - See COPYING in the top level directory
- * FILE: boot/freeldr/freeldr/arcemul/mm.c
- * PURPOSE: Routines for ARC Memory Management
- * PROGRAMMERS: Hervé Poussineau <[email protected]>
- */
-
-/* INCLUDES
*******************************************************************/
-
-#include <freeldr.h>
-#define NDEBUG
-#include <debug.h>
-
-/* FUNCTIONS
******************************************************************/
-
-typedef struct
-{
- MEMORY_DESCRIPTOR m;
- ULONG Index;
- BOOLEAN GeneratedDescriptor;
-} MEMORY_DESCRIPTOR_INT;
-static const MEMORY_DESCRIPTOR_INT MemoryDescriptors[] =
-{
-#if defined (__i386__) || defined (_M_AMD64)
- { { MemoryFirmwarePermanent, 0x00, 1 }, 0, }, // realmode int vectors
- { { MemoryFirmwareTemporary, 0x01, 7 }, 1, }, // freeldr stack + cmdline
- { { MemoryLoadedProgram, 0x08, 0x70 }, 2, }, // freeldr image (roughly
max. 0x64 pages)
- { { MemorySpecialMemory, 0x78, 8 }, 3, }, // prot mode stack.
BIOSCALLBUFFER
- { { MemoryFirmwareTemporary, 0x80, 0x10 }, 4, }, // File system read
buffer. FILESYSBUFFER
- { { MemoryFirmwareTemporary, 0x90, 0x10 }, 5, }, // Disk read buffer for
int 13h. DISKREADBUFFER
- { { MemoryFirmwarePermanent, 0xA0, 0x60 }, 6, }, // ROM / Video
- { { MemorySpecialMemory, 0xFFF, 1 }, 7, }, // unusable memory
-#elif __arm__ // This needs to be done per-platform specific way
-
-#endif
-};
-
-static
-VOID MmFixupSystemMemoryMap(PBIOS_MEMORY_MAP BiosMemoryMap, ULONG* MapCount)
-{
- int Index;
- int Index2;
- ULONGLONG BaseAddressOffset;
-
- // Loop through each entry in the array
- for (Index=0; Index<*MapCount; Index++)
- {
- // Correct all the addresses to be aligned on page boundaries
- BaseAddressOffset = ROUND_UP(BiosMemoryMap[Index].BaseAddress,
MM_PAGE_SIZE) - BiosMemoryMap[Index].BaseAddress;
- BiosMemoryMap[Index].BaseAddress += BaseAddressOffset;
- if (BiosMemoryMap[Index].Length < BaseAddressOffset)
- {
- BiosMemoryMap[Index].Length = 0;
- }
- else
- {
- BiosMemoryMap[Index].Length -= BaseAddressOffset;
- }
- BiosMemoryMap[Index].Length =
ROUND_DOWN(BiosMemoryMap[Index].Length, MM_PAGE_SIZE);
-
- // If the entry type isn't usable then remove
- // it from the memory map (this will help reduce
- // the size of our lookup table)
- // If the length is less than a full page then
- // get rid of it also.
- if (BiosMemoryMap[Index].Type != BiosMemoryUsable ||
- BiosMemoryMap[Index].Length < MM_PAGE_SIZE)
- {
- // Slide every entry after this down one
- for (Index2=Index; Index2<(*MapCount - 1); Index2++)
- {
- BiosMemoryMap[Index2] = BiosMemoryMap[Index2 +
1];
- }
- (*MapCount)--;
- Index--;
- }
- }
-}
-
-const MEMORY_DESCRIPTOR*
-ArcGetMemoryDescriptor(const MEMORY_DESCRIPTOR* Current)
-{
- MEMORY_DESCRIPTOR_INT* CurrentDescriptor;
- BIOS_MEMORY_MAP BiosMemoryMap[32];
- static ULONG BiosMemoryMapEntryCount;
- static MEMORY_DESCRIPTOR_INT BiosMemoryDescriptors[32];
- static BOOLEAN MemoryMapInitialized = FALSE;
- ULONG i, j;
-
- //
- // Check if it is the first time we're called
- //
- if (!MemoryMapInitialized)
- {
- //
- // Get the machine generated memory map
- //
- RtlZeroMemory(BiosMemoryMap, sizeof(BIOS_MEMORY_MAP) * 32);
- BiosMemoryMapEntryCount = MachVtbl.GetMemoryMap(BiosMemoryMap,
- sizeof(BiosMemoryMap) /
-
sizeof(BIOS_MEMORY_MAP));
-
- //
- // Fix entries that are not page aligned
- //
- MmFixupSystemMemoryMap(BiosMemoryMap, &BiosMemoryMapEntryCount);
-
- //
- // Copy the entries to our structure
- //
- for (i = 0, j = 0; i < BiosMemoryMapEntryCount; i++)
- {
- //
- // Is it suitable memory?
- //
- if (BiosMemoryMap[i].Type != BiosMemoryUsable)
- {
- //
- // No. Process next descriptor
- //
- continue;
- }
-
- //
- // Copy this memory descriptor
- //
- BiosMemoryDescriptors[j].m.MemoryType = MemoryFree;
- BiosMemoryDescriptors[j].m.BasePage =
(ULONG)(BiosMemoryMap[i].BaseAddress / MM_PAGE_SIZE);
- BiosMemoryDescriptors[j].m.PageCount =
(ULONG)(BiosMemoryMap[i].Length / MM_PAGE_SIZE);
- BiosMemoryDescriptors[j].Index = j;
- BiosMemoryDescriptors[j].GeneratedDescriptor = TRUE;
- j++;
- }
-
- //
- // Remember how much descriptors we found
- //
- BiosMemoryMapEntryCount = j;
-
- //
- // Mark memory map as already retrieved and initialized
- //
- MemoryMapInitialized = TRUE;
- }
-
- CurrentDescriptor = CONTAINING_RECORD(Current, MEMORY_DESCRIPTOR_INT, m);
-
- if (Current == NULL)
- {
- //
- // First descriptor requested
- //
- if (BiosMemoryMapEntryCount > 0)
- {
- //
- // Return first generated memory descriptor
- //
- return &BiosMemoryDescriptors[0].m;
- }
- else if (sizeof(MemoryDescriptors) > 0)
- {
- //
- // Return first fixed memory descriptor
- //
- return &MemoryDescriptors[0].m;
- }
- else
- {
- //
- // Strange case, we have no memory descriptor
- //
- return NULL;
- }
- }
- else if (CurrentDescriptor->GeneratedDescriptor)
- {
- //
- // Current entry is a generated descriptor
- //
- if (CurrentDescriptor->Index + 1 < BiosMemoryMapEntryCount)
- {
- //
- // Return next generated descriptor
- //
- return &BiosMemoryDescriptors[CurrentDescriptor->Index + 1].m;
- }
- else if (sizeof(MemoryDescriptors) > 0)
- {
- //
- // Return first fixed memory descriptor
- //
- return &MemoryDescriptors[0].m;
- }
- else
- {
- //
- // No fixed memory descriptor; end of memory map
- //
- return NULL;
- }
- }
- else
- {
- //
- // Current entry is a fixed descriptor
- //
- if (CurrentDescriptor->Index + 1 < sizeof(MemoryDescriptors) /
sizeof(MemoryDescriptors[0]))
- {
- //
- // Return next fixed descriptor
- //
- return &MemoryDescriptors[CurrentDescriptor->Index + 1].m;
- }
- else
- {
- //
- // No more fixed memory descriptor; end of memory map
- //
- return NULL;
- }
- }
-}
Modified: trunk/reactos/boot/freeldr/freeldr/freeldr_base.rbuild
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/freeldr_base.rbuild?rev=53801&r1=53800&r2=53801&view=diff
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/freeldr_base.rbuild [iso-8859-1]
(original)
+++ trunk/reactos/boot/freeldr/freeldr/freeldr_base.rbuild [iso-8859-1] Thu Sep
22 07:52:51 2011
@@ -9,7 +9,6 @@
<define name="_NTHAL_" />
<define name="_NTSYSTEM_" />
<directory name="arcemul">
- <file>mm.c</file>
<file>time.c</file>
</directory>
<directory name="cache">
@@ -41,6 +40,7 @@
<file>parse.c</file>
</directory>
<directory name="mm">
+ <file>heap.c</file>
<file>meminit.c</file>
<file>mm.c</file>
</directory>
Copied: trunk/reactos/boot/freeldr/freeldr/mm/heap.c (from r53800,
trunk/reactos/boot/freeldr/freeldr/mm/mm.c)
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/mm/heap.c?p2=trunk/reactos/boot/freeldr/freeldr/mm/heap.c&p1=trunk/reactos/boot/freeldr/freeldr/mm/mm.c&r1=53800&r2=53801&rev=53801&view=diff
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/mm/mm.c [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/mm/heap.c [iso-8859-1] Thu Sep 22
07:52:51 2011
@@ -20,66 +20,30 @@
#include <freeldr.h>
#include <debug.h>
-#if DBG
-VOID DumpMemoryAllocMap(VOID);
-VOID MemAllocTest(VOID);
-#endif // DBG
-
DBG_DEFAULT_CHANNEL(MEMORY);
-ULONG LoaderPagesSpanned = 0;
+VOID MmInitializeHeap(PVOID PageLookupTable)
+{
+ ULONG PagesNeeded = 0;
+ ULONG HeapStart = 0;
-PVOID MmAllocateMemoryWithType(ULONG MemorySize, TYPE_OF_MEMORY MemoryType)
-{
- ULONG PagesNeeded;
- ULONG FirstFreePageFromEnd;
- PVOID MemPointer;
+ // Find contigious memory block for HEAP:STACK
+ PagesNeeded = HEAP_PAGES + STACK_PAGES;
+ HeapStart = MmFindAvailablePages(PageLookupTable,
TotalPagesInLookupTable, PagesNeeded, FALSE);
- if (MemorySize == 0)
+ if (HeapStart == 0)
{
- WARN("MmAllocateMemory() called for 0 bytes. Returning
NULL.\n");
- UiMessageBoxCritical("Memory allocation failed:
MmAllocateMemory() called for 0 bytes.");
- return NULL;
+ UiMessageBox("Critical error: Can't allocate heap!");
+ return;
}
- MemorySize = ROUND_UP(MemorySize, 4);
+ // Initialize BGET
+ bpool(HeapStart << MM_PAGE_SHIFT, PagesNeeded << MM_PAGE_SHIFT);
- // Find out how many blocks it will take to
- // satisfy this allocation
- PagesNeeded = ROUND_UP(MemorySize, MM_PAGE_SIZE) / MM_PAGE_SIZE;
+ // Mark those pages as used
+ MmMarkPagesInLookupTable(PageLookupTableAddress, HeapStart,
PagesNeeded, LoaderOsloaderHeap);
- // If we don't have enough available mem
- // then return NULL
- if (FreePagesInLookupTable < PagesNeeded)
- {
- ERR("Memory allocation failed in MmAllocateMemory(). Not enough
free memory to allocate %d bytes.\n", MemorySize);
- UiMessageBoxCritical("Memory allocation failed: out of
memory.");
- return NULL;
- }
-
- FirstFreePageFromEnd = MmFindAvailablePages(PageLookupTableAddress,
TotalPagesInLookupTable, PagesNeeded, FALSE);
-
- if (FirstFreePageFromEnd == 0)
- {
- ERR("Memory allocation failed in MmAllocateMemory(). Not enough
free memory to allocate %d bytes.\n", MemorySize);
- UiMessageBoxCritical("Memory allocation failed: out of
memory.");
- return NULL;
- }
-
- MmAllocatePagesInLookupTable(PageLookupTableAddress,
FirstFreePageFromEnd, PagesNeeded, MemoryType);
-
- FreePagesInLookupTable -= PagesNeeded;
- MemPointer = (PVOID)((ULONG_PTR)FirstFreePageFromEnd * MM_PAGE_SIZE);
-
- TRACE("Allocated %d bytes (%d pages) of memory starting at page %d.\n",
MemorySize, PagesNeeded, FirstFreePageFromEnd);
- TRACE("Memory allocation pointer: 0x%x\n", MemPointer);
-
- // Update LoaderPagesSpanned count
- if ((((ULONG_PTR)MemPointer + MemorySize + PAGE_SIZE - 1) >>
PAGE_SHIFT) > LoaderPagesSpanned)
- LoaderPagesSpanned = (((ULONG_PTR)MemPointer + MemorySize +
PAGE_SIZE - 1) >> PAGE_SHIFT);
-
- // Now return the pointer
- return MemPointer;
+ TRACE("Heap initialized, base 0x%08x, pages %d\n", (HeapStart <<
MM_PAGE_SHIFT), PagesNeeded);
}
PVOID MmHeapAlloc(ULONG MemorySize)
@@ -118,232 +82,7 @@
brel(MemoryPointer);
}
-PVOID MmAllocateMemory(ULONG MemorySize)
-{
- // Temporary forwarder...
- return MmAllocateMemoryWithType(MemorySize, LoaderOsloaderHeap);
-}
-PVOID MmAllocateMemoryAtAddress(ULONG MemorySize, PVOID DesiredAddress,
TYPE_OF_MEMORY MemoryType)
-{
- ULONG PagesNeeded;
- ULONG StartPageNumber;
- PVOID MemPointer;
-
- if (MemorySize == 0)
- {
- WARN("MmAllocateMemoryAtAddress() called for 0 bytes. Returning
NULL.\n");
- UiMessageBoxCritical("Memory allocation failed:
MmAllocateMemoryAtAddress() called for 0 bytes.");
- return NULL;
- }
-
- // Find out how many blocks it will take to
- // satisfy this allocation
- PagesNeeded = ROUND_UP(MemorySize, MM_PAGE_SIZE) / MM_PAGE_SIZE;
-
- // Get the starting page number
- StartPageNumber = MmGetPageNumberFromAddress(DesiredAddress);
-
- // If we don't have enough available mem
- // then return NULL
- if (FreePagesInLookupTable < PagesNeeded)
- {
- ERR("Memory allocation failed in MmAllocateMemoryAtAddress(). "
- "Not enough free memory to allocate %d bytes
(requesting %d pages but have only %d). "
- "\n", MemorySize, PagesNeeded, FreePagesInLookupTable);
- UiMessageBoxCritical("Memory allocation failed: out of
memory.");
- return NULL;
- }
-
- if (MmAreMemoryPagesAvailable(PageLookupTableAddress,
TotalPagesInLookupTable, DesiredAddress, PagesNeeded) == FALSE)
- {
- WARN("Memory allocation failed in MmAllocateMemoryAtAddress(). "
- "Not enough free memory to allocate %d bytes at
address %p.\n",
- MemorySize, DesiredAddress);
-
- // Don't tell this to user since caller should try to alloc
this memory
- // at a different address
- //UiMessageBoxCritical("Memory allocation failed: out of
memory.");
- return NULL;
- }
-
- MmAllocatePagesInLookupTable(PageLookupTableAddress, StartPageNumber,
PagesNeeded, MemoryType);
-
- FreePagesInLookupTable -= PagesNeeded;
- MemPointer = (PVOID)((ULONG_PTR)StartPageNumber * MM_PAGE_SIZE);
-
- TRACE("Allocated %d bytes (%d pages) of memory starting at page %d.\n",
MemorySize, PagesNeeded, StartPageNumber);
- TRACE("Memory allocation pointer: 0x%x\n", MemPointer);
-
- // Update LoaderPagesSpanned count
- if ((((ULONG_PTR)MemPointer + MemorySize + PAGE_SIZE - 1) >>
PAGE_SHIFT) > LoaderPagesSpanned)
- LoaderPagesSpanned = (((ULONG_PTR)MemPointer + MemorySize +
PAGE_SIZE - 1) >> PAGE_SHIFT);
-
- // Now return the pointer
- return MemPointer;
-}
-
-VOID MmSetMemoryType(PVOID MemoryAddress, ULONG MemorySize, TYPE_OF_MEMORY
NewType)
-{
- ULONG PagesNeeded;
- ULONG StartPageNumber;
-
- // Find out how many blocks it will take to
- // satisfy this allocation
- PagesNeeded = ROUND_UP(MemorySize, MM_PAGE_SIZE) / MM_PAGE_SIZE;
-
- // Get the starting page number
- StartPageNumber = MmGetPageNumberFromAddress(MemoryAddress);
-
- // Set new type for these pages
- MmAllocatePagesInLookupTable(PageLookupTableAddress, StartPageNumber,
PagesNeeded, NewType);
-}
-
-PVOID MmAllocateHighestMemoryBelowAddress(ULONG MemorySize, PVOID
DesiredAddress, TYPE_OF_MEMORY MemoryType)
-{
- ULONG PagesNeeded;
- ULONG FirstFreePageFromEnd;
- ULONG DesiredAddressPageNumber;
- PVOID MemPointer;
-
- if (MemorySize == 0)
- {
- WARN("MmAllocateHighestMemoryBelowAddress() called for 0 bytes.
Returning NULL.\n");
- UiMessageBoxCritical("Memory allocation failed:
MmAllocateHighestMemoryBelowAddress() called for 0 bytes.");
- return NULL;
- }
-
- // Find out how many blocks it will take to
- // satisfy this allocation
- PagesNeeded = ROUND_UP(MemorySize, MM_PAGE_SIZE) / MM_PAGE_SIZE;
-
- // Get the page number for their desired address
- DesiredAddressPageNumber = (ULONG_PTR)DesiredAddress / MM_PAGE_SIZE;
-
- // If we don't have enough available mem
- // then return NULL
- if (FreePagesInLookupTable < PagesNeeded)
- {
- ERR("Memory allocation failed in
MmAllocateHighestMemoryBelowAddress(). Not enough free memory to allocate %d
bytes.\n", MemorySize);
- UiMessageBoxCritical("Memory allocation failed: out of
memory.");
- return NULL;
- }
-
- FirstFreePageFromEnd =
MmFindAvailablePagesBeforePage(PageLookupTableAddress, TotalPagesInLookupTable,
PagesNeeded, DesiredAddressPageNumber);
-
- if (FirstFreePageFromEnd == 0)
- {
- ERR("Memory allocation failed in
MmAllocateHighestMemoryBelowAddress(). Not enough free memory to allocate %d
bytes.\n", MemorySize);
- UiMessageBoxCritical("Memory allocation failed: out of
memory.");
- return NULL;
- }
-
- MmAllocatePagesInLookupTable(PageLookupTableAddress,
FirstFreePageFromEnd, PagesNeeded, MemoryType);
-
- FreePagesInLookupTable -= PagesNeeded;
- MemPointer = (PVOID)((ULONG_PTR)FirstFreePageFromEnd * MM_PAGE_SIZE);
-
- TRACE("Allocated %d bytes (%d pages) of memory starting at page %d.\n",
MemorySize, PagesNeeded, FirstFreePageFromEnd);
- TRACE("Memory allocation pointer: 0x%x\n", MemPointer);
-
- // Update LoaderPagesSpanned count
- if ((((ULONG_PTR)MemPointer + MemorySize) >> PAGE_SHIFT) >
LoaderPagesSpanned)
- LoaderPagesSpanned = (((ULONG_PTR)MemPointer + MemorySize) >>
PAGE_SHIFT);
-
- // Now return the pointer
- return MemPointer;
-}
-
-VOID MmFreeMemory(PVOID MemoryPointer)
-{
-}
-
-#if DBG
-
-VOID DumpMemoryAllocMap(VOID)
-{
- ULONG Idx;
- PPAGE_LOOKUP_TABLE_ITEM RealPageLookupTable =
(PPAGE_LOOKUP_TABLE_ITEM)PageLookupTableAddress;
-
- DbgPrint("----------- Memory Allocation Bitmap -----------\n");
-
- for (Idx=0; Idx<TotalPagesInLookupTable; Idx++)
- {
- if ((Idx % 32) == 0)
- {
- DbgPrint("\n");
- DbgPrint("%08x:\t", (Idx * MM_PAGE_SIZE));
- }
- else if ((Idx % 4) == 0)
- {
- DbgPrint(" ");
- }
-
- switch (RealPageLookupTable[Idx].PageAllocated)
- {
- case LoaderFree:
- DbgPrint("*");
- break;
- case LoaderBad:
- DbgPrint( "-");
- break;
- case LoaderLoadedProgram:
- DbgPrint("O");
- break;
- case LoaderFirmwareTemporary:
- DbgPrint("T");
- break;
- case LoaderFirmwarePermanent:
- DbgPrint( "P");
- break;
- case LoaderOsloaderHeap:
- DbgPrint("H");
- break;
- case LoaderOsloaderStack:
- DbgPrint("S");
- break;
- case LoaderSystemCode:
- DbgPrint("K");
- break;
- case LoaderHalCode:
- DbgPrint("L");
- break;
- case LoaderBootDriver:
- DbgPrint("B");
- break;
- case LoaderStartupPcrPage:
- DbgPrint("G");
- break;
- case LoaderRegistryData:
- DbgPrint("R");
- break;
- case LoaderMemoryData:
- DbgPrint("M");
- break;
- case LoaderNlsData:
- DbgPrint("N");
- break;
- case LoaderSpecialMemory:
- DbgPrint("C");
- break;
- default:
- DbgPrint("?");
- break;
- }
- }
-
- DbgPrint("\n");
-}
-#endif // DBG
-
-PPAGE_LOOKUP_TABLE_ITEM MmGetMemoryMap(ULONG *NoEntries)
-{
- PPAGE_LOOKUP_TABLE_ITEM RealPageLookupTable =
(PPAGE_LOOKUP_TABLE_ITEM)PageLookupTableAddress;
-
- *NoEntries = TotalPagesInLookupTable;
-
- return RealPageLookupTable;
-}
#undef ExAllocatePoolWithTag
NTKERNELAPI
Modified: trunk/reactos/boot/freeldr/freeldr/mm/meminit.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/mm/meminit.c?rev=53801&r1=53800&r2=53801&view=diff
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/mm/meminit.c [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/mm/meminit.c [iso-8859-1] Thu Sep 22
07:52:51 2011
@@ -56,6 +56,215 @@
extern ULONG_PTR MmHeapPointer;
extern ULONG_PTR MmHeapStart;
+typedef struct
+{
+ MEMORY_DESCRIPTOR m;
+ ULONG Index;
+ BOOLEAN GeneratedDescriptor;
+} MEMORY_DESCRIPTOR_INT;
+static const MEMORY_DESCRIPTOR_INT MemoryDescriptors[] =
+{
+#if defined (__i386__) || defined (_M_AMD64)
+ { { MemoryFirmwarePermanent, 0x00, 1 }, 0, }, // realmode int vectors
+ { { MemoryFirmwareTemporary, 0x01, 7 }, 1, }, // freeldr stack + cmdline
+ { { MemoryLoadedProgram, 0x08, 0x70 }, 2, }, // freeldr image (roughly
max. 0x64 pages)
+ { { MemorySpecialMemory, 0x78, 8 }, 3, }, // prot mode stack.
BIOSCALLBUFFER
+ { { MemoryFirmwareTemporary, 0x80, 0x10 }, 4, }, // File system read
buffer. FILESYSBUFFER
+ { { MemoryFirmwareTemporary, 0x90, 0x10 }, 5, }, // Disk read buffer for
int 13h. DISKREADBUFFER
+ { { MemoryFirmwarePermanent, 0xA0, 0x60 }, 6, }, // ROM / Video
+ { { MemorySpecialMemory, 0xFFF, 1 }, 7, }, // unusable memory
+#elif __arm__ // This needs to be done per-platform specific way
+
+#endif
+};
+
+static
+VOID MmFixupSystemMemoryMap(PBIOS_MEMORY_MAP BiosMemoryMap, ULONG* MapCount)
+{
+ int Index;
+ int Index2;
+ ULONGLONG BaseAddressOffset;
+
+ // Loop through each entry in the array
+ for (Index=0; Index<*MapCount; Index++)
+ {
+ // Correct all the addresses to be aligned on page boundaries
+ BaseAddressOffset = ROUND_UP(BiosMemoryMap[Index].BaseAddress,
MM_PAGE_SIZE) - BiosMemoryMap[Index].BaseAddress;
+ BiosMemoryMap[Index].BaseAddress += BaseAddressOffset;
+ if (BiosMemoryMap[Index].Length < BaseAddressOffset)
+ {
+ BiosMemoryMap[Index].Length = 0;
+ }
+ else
+ {
+ BiosMemoryMap[Index].Length -= BaseAddressOffset;
+ }
+ BiosMemoryMap[Index].Length =
ROUND_DOWN(BiosMemoryMap[Index].Length, MM_PAGE_SIZE);
+
+ // If the entry type isn't usable then remove
+ // it from the memory map (this will help reduce
+ // the size of our lookup table)
+ // If the length is less than a full page then
+ // get rid of it also.
+ if (BiosMemoryMap[Index].Type != BiosMemoryUsable ||
+ BiosMemoryMap[Index].Length < MM_PAGE_SIZE)
+ {
+ // Slide every entry after this down one
+ for (Index2=Index; Index2<(*MapCount - 1); Index2++)
+ {
+ BiosMemoryMap[Index2] = BiosMemoryMap[Index2 +
1];
+ }
+ (*MapCount)--;
+ Index--;
+ }
+ }
+}
+
+const MEMORY_DESCRIPTOR*
+ArcGetMemoryDescriptor(const MEMORY_DESCRIPTOR* Current)
+{
+ MEMORY_DESCRIPTOR_INT* CurrentDescriptor;
+ BIOS_MEMORY_MAP BiosMemoryMap[32];
+ static ULONG BiosMemoryMapEntryCount;
+ static MEMORY_DESCRIPTOR_INT BiosMemoryDescriptors[32];
+ static BOOLEAN MemoryMapInitialized = FALSE;
+ ULONG i, j;
+
+ //
+ // Check if it is the first time we're called
+ //
+ if (!MemoryMapInitialized)
+ {
+ //
+ // Get the machine generated memory map
+ //
+ RtlZeroMemory(BiosMemoryMap, sizeof(BIOS_MEMORY_MAP) * 32);
+ BiosMemoryMapEntryCount = MachVtbl.GetMemoryMap(BiosMemoryMap,
+ sizeof(BiosMemoryMap) /
+
sizeof(BIOS_MEMORY_MAP));
+
+ //
+ // Fix entries that are not page aligned
+ //
+ MmFixupSystemMemoryMap(BiosMemoryMap, &BiosMemoryMapEntryCount);
+
+ //
+ // Copy the entries to our structure
+ //
+ for (i = 0, j = 0; i < BiosMemoryMapEntryCount; i++)
+ {
+ //
+ // Is it suitable memory?
+ //
+ if (BiosMemoryMap[i].Type != BiosMemoryUsable)
+ {
+ //
+ // No. Process next descriptor
+ //
+ continue;
+ }
+
+ //
+ // Copy this memory descriptor
+ //
+ BiosMemoryDescriptors[j].m.MemoryType = MemoryFree;
+ BiosMemoryDescriptors[j].m.BasePage =
(ULONG)(BiosMemoryMap[i].BaseAddress / MM_PAGE_SIZE);
+ BiosMemoryDescriptors[j].m.PageCount =
(ULONG)(BiosMemoryMap[i].Length / MM_PAGE_SIZE);
+ BiosMemoryDescriptors[j].Index = j;
+ BiosMemoryDescriptors[j].GeneratedDescriptor = TRUE;
+ j++;
+ }
+
+ //
+ // Remember how much descriptors we found
+ //
+ BiosMemoryMapEntryCount = j;
+
+ //
+ // Mark memory map as already retrieved and initialized
+ //
+ MemoryMapInitialized = TRUE;
+ }
+
+ CurrentDescriptor = CONTAINING_RECORD(Current, MEMORY_DESCRIPTOR_INT, m);
+
+ if (Current == NULL)
+ {
+ //
+ // First descriptor requested
+ //
+ if (BiosMemoryMapEntryCount > 0)
+ {
+ //
+ // Return first generated memory descriptor
+ //
+ return &BiosMemoryDescriptors[0].m;
+ }
+ else if (sizeof(MemoryDescriptors) > 0)
+ {
+ //
+ // Return first fixed memory descriptor
+ //
+ return &MemoryDescriptors[0].m;
+ }
+ else
+ {
+ //
+ // Strange case, we have no memory descriptor
+ //
+ return NULL;
+ }
+ }
+ else if (CurrentDescriptor->GeneratedDescriptor)
+ {
+ //
+ // Current entry is a generated descriptor
+ //
+ if (CurrentDescriptor->Index + 1 < BiosMemoryMapEntryCount)
+ {
+ //
+ // Return next generated descriptor
+ //
+ return &BiosMemoryDescriptors[CurrentDescriptor->Index + 1].m;
+ }
+ else if (sizeof(MemoryDescriptors) > 0)
+ {
+ //
+ // Return first fixed memory descriptor
+ //
+ return &MemoryDescriptors[0].m;
+ }
+ else
+ {
+ //
+ // No fixed memory descriptor; end of memory map
+ //
+ return NULL;
+ }
+ }
+ else
+ {
+ //
+ // Current entry is a fixed descriptor
+ //
+ if (CurrentDescriptor->Index + 1 < sizeof(MemoryDescriptors) /
sizeof(MemoryDescriptors[0]))
+ {
+ //
+ // Return next fixed descriptor
+ //
+ return &MemoryDescriptors[CurrentDescriptor->Index + 1].m;
+ }
+ else
+ {
+ //
+ // No more fixed memory descriptor; end of memory map
+ //
+ return NULL;
+ }
+ }
+}
+
+
BOOLEAN MmInitializeMemoryManager(VOID)
{
#if DBG
@@ -102,40 +311,6 @@
return TRUE;
}
-VOID MmInitializeHeap(PVOID PageLookupTable)
-{
- ULONG PagesNeeded;
- ULONG HeapStart;
-#ifndef _M_ARM
- MEMORY_TYPE Type;
- PPAGE_LOOKUP_TABLE_ITEM RealPageLookupTable =
(PPAGE_LOOKUP_TABLE_ITEM)PageLookupTable;
-
- // HACK: Make it so it doesn't overlap kernel space
- Type = RealPageLookupTable[0x100].PageAllocated;
- MmMarkPagesInLookupTable(PageLookupTableAddress, 0x100, 0xFF,
LoaderSystemCode);
-#endif
- // Find contigious memory block for HEAP:STACK
- PagesNeeded = HEAP_PAGES + STACK_PAGES;
- HeapStart = MmFindAvailablePages(PageLookupTable,
TotalPagesInLookupTable, PagesNeeded, FALSE);
-#ifndef _M_ARM
- // Unapply the hack
- MmMarkPagesInLookupTable(PageLookupTableAddress, 0x100, 0xFF, Type);
-#endif
- if (HeapStart == 0)
- {
- UiMessageBox("Critical error: Can't allocate heap!");
- return;
- }
-
- // Initialize BGET
- bpool(HeapStart << MM_PAGE_SHIFT, PagesNeeded << MM_PAGE_SHIFT);
-
- // Mark those pages as used
- MmMarkPagesInLookupTable(PageLookupTableAddress, HeapStart,
PagesNeeded, LoaderOsloaderHeap);
-
- TRACE("Heap initialized, base 0x%08x, pages %d\n", (HeapStart <<
MM_PAGE_SHIFT), PagesNeeded);
-}
-
#if DBG
PCSTR MmGetSystemMemoryMapTypeString(MEMORY_TYPE Type)
{
@@ -178,7 +353,7 @@
//
if (MemoryDescriptor->MemoryType == MemoryFree)
MmHighestPhysicalPage = MemoryDescriptor->BasePage +
MemoryDescriptor->PageCount;
}
-
+
//
// Check if we got a higher (usable) start page address
//
@@ -190,7 +365,7 @@
if (MemoryDescriptor->MemoryType == MemoryFree)
MmLowestPhysicalPage = MemoryDescriptor->BasePage;
}
}
-
+
TRACE("lo/hi %lx %lxn", MmLowestPhysicalPage, MmHighestPhysicalPage);
PageCount = MmHighestPhysicalPage - MmLowestPhysicalPage;
TRACE("MmGetAddressablePageCountIncludingHoles() returning 0x%x\n",
PageCount);
Modified: trunk/reactos/boot/freeldr/freeldr/mm/mm.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/mm/mm.c?rev=53801&r1=53800&r2=53801&view=diff
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/mm/mm.c [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/mm/mm.c [iso-8859-1] Thu Sep 22 07:52:51
2011
@@ -82,42 +82,6 @@
return MemPointer;
}
-PVOID MmHeapAlloc(ULONG MemorySize)
-{
- PVOID Result;
-
- if (MemorySize > MM_PAGE_SIZE)
- {
- WARN("Consider using other functions to allocate %d bytes of
memory!\n", MemorySize);
- }
-
- // Get the buffer from BGET pool
- Result = bget(MemorySize);
-
- if (Result == NULL)
- {
- ERR("Heap allocation for %d bytes failed\n", MemorySize);
- }
-#if MM_DBG
- {
- LONG CurAlloc, TotalFree, MaxFree, NumberOfGets, NumberOfRels;
-
- // Gather some stats
- bstats(&CurAlloc, &TotalFree, &MaxFree, &NumberOfGets,
&NumberOfRels);
-
- TRACE("Current alloced %d bytes, free %d bytes, allocs %d, frees
%d\n",
- CurAlloc, TotalFree, NumberOfGets, NumberOfRels);
- }
-#endif
- return Result;
-}
-
-VOID MmHeapFree(PVOID MemoryPointer)
-{
- // Release the buffer to the pool
- brel(MemoryPointer);
-}
-
PVOID MmAllocateMemory(ULONG MemorySize)
{
// Temporary forwarder...
@@ -345,64 +309,3 @@
return RealPageLookupTable;
}
-#undef ExAllocatePoolWithTag
-NTKERNELAPI
-PVOID
-NTAPI
-ExAllocatePoolWithTag(
- IN POOL_TYPE PoolType,
- IN SIZE_T NumberOfBytes,
- IN ULONG Tag)
-{
- return MmHeapAlloc(NumberOfBytes);
-}
-
-#undef ExFreePool
-NTKERNELAPI
-VOID
-NTAPI
-ExFreePool(
- IN PVOID P)
-{
- MmHeapFree(P);
-}
-
-#undef ExFreePoolWithTag
-NTKERNELAPI
-VOID
-NTAPI
-ExFreePoolWithTag(
- IN PVOID P,
- IN ULONG Tag)
-{
- ExFreePool(P);
-}
-
-PVOID
-NTAPI
-RtlAllocateHeap(
- IN PVOID HeapHandle,
- IN ULONG Flags,
- IN SIZE_T Size)
-{
- PVOID ptr;
-
- ptr = MmHeapAlloc(Size);
- if (ptr && (Flags & HEAP_ZERO_MEMORY))
- {
- RtlZeroMemory(ptr, Size);
- }
-
- return ptr;
-}
-
-BOOLEAN
-NTAPI
-RtlFreeHeap(
- IN PVOID HeapHandle,
- IN ULONG Flags,
- IN PVOID HeapBase)
-{
- MmHeapFree(HeapBase);
- return TRUE;
-}
